<!--
  Source: https://github.com/alex-shpak/hugo-book/blob/master/layouts/shortcodes/tab.html
-->

{{ if .Parent -}}
  {{ $name := .Get 0 }}
  {{ $slug := .Get 1 }}
  {{ $group := printf "tabs-%s" (.Parent.Get 0) }}

  {{ if not (.Parent.Scratch.Get $group) }}
    {{ .Parent.Scratch.Set $group slice }}
  {{ end }}

  {{ .Parent.Scratch.Add $group (dict "Name" $name "Slug" $slug "Content" .Inner) }}
{{ else -}}
  {{ errorf "%q: 'tab' shortcode must be inside 'tabs' shortcode" .Page.Path }}
{{ end -}}
